Bevel-cutting machine



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" v. MAYER BEVEL CUTTING MACHINE Filed Sept. 10 1919 2 Sheets-Sheet 1 Aug. M, i923.

V. MAYER BEVEL CUTTING MACHINE Filed Sept. 10 1919 a@ @mil 5@ G:

2 Sheets-Sheet 2 Patented Aug.. 14, i923. l

` Meana knairae1sratras maaar oasi/ea.

viLHnLia MAYEB, or CHICAGO, ILHN-ois, .assreivoafe Masiva ASSIGNMENTS, To

U. s. SAMPLE COMPANY, a coaroaarion or iLLINoIs.

REVEL-CUTTING MACHINE.

AApplication led September 10, 1819.r Serial No. 322,785. i

To all whom it may concern.'

Beit known that l, VILHELM'MAYER, a citizen of the YUnited States, and a resident Vci' Chicago, in the county otCook, State oilllinois, have invented certain new and useful Improvements in Bevel-Cutting Machines, ot which the following is a speciligation.

Y My invention relates to bevel` cutting machines and particularly to an improved attachment yfor straight paper cuttingmachines which will enable bevel cutting to .be

readily and efficiently accomplished by such machines.

y rlhe invention is particularly useful in the binding `art for beveling thick heavy'sheets of, paper, composition, or similar material which are used for covers ot books. The' usual type of `straight cutting machine is one comprising' a supporting table, work adjusting mechanism, and -a'knife blade adapted to berecipr'ocated' at right angles with and toward and away from the table. The object of my invention is to provide 4a simple Vadjustalile attachment for machines of this type for supporting the paper board at the proper angle with reference to the knife so 'that'ivhenthe knife descends the desired bevel cut will be accomplished'.

My inventionj is particularly applicable to and useful in connection with the paper cutting machine disclosedin my co-pending application executed of even date herewith lSerial'Number 322,7 84, filed September 10, 1919. On the accompanying drawings I have shown my improved attachment applied toY such machine and on these drawings v Y i Fig. l1 is a front elevational view of the machine with the attachmentV applied thereto; l

Fig. 2 -is a side elevational view, Fig: 3 an enlarged sectional view'on plane 3 3, Fig. 1,l and VF'gs.. 4 and are perspective viewsot blocks employed in the construction. i

rThe 'supporting structure of -thepaper cutting machine shown vcomprises the two side trames 5 and 6, the upper cross beam '7, the y*lower cross-beam 8,*and the work supportingv bed or table 9. Above the-table theside frames havewertical guide channels lOand 11 of which the bars 12 and 1.3 toi-1n thefront walls.v The cutting knife structure comprising the body 14 and the `by rthe bearing heads 21 and 22.

Vmoved and the recess used for blocks 39 and 40 each have a'v rectangular The extension 16 on the side frame 5 has the diagonally extending slot 17 in which rollers 18 pinned on the knife structure engage. This roller and slotconnection causes the knife structure to move diagonallyY in the well known manner.

A15-the ends 0f the knife structure body are Ithe balls 19 and 2O which are received These bearing heads are connected by adjustable links 23--and 24 with similar bearing heads and 26 which receive the ball ends of Vfcrank pins27 and 28 extending from the hub 29 and fly-wheel 30 respectively, the

hub an d fly-wheel being 4secured on the drive shatt 31 which is Journaled 1n the bearings 32 and 33 on the side frames 5 and 6 respectively. The shaft also has a sprocket wheel 34 by means of which the machine may be connected 'to the belt`35 wi'th'a suitable driving pulley'.

At the rear edge of the work supporting table 9 is termed the rectangular recess 36 which receives-the cutting stick when the machine is used for ordinary straight cutting. rlhis cutting stick is usually of woody and held in place intherecess by a clamping plate 37 held against the machine frame and the stick by screws 38. However when -my approved bevel cutting attachment is applied the wood cutting stick may be repositioning and securing 'the attachment. y

rllhe attachment vis supported by two blocks r39 and 40 which are oit' the same construction. These blocks support the blocks 42 and 47, which are Iadjustable with relation to the supporting blocks 39 and 40. These ange 41 extending downwardly from its inner end for engagement in the cutting stick recess v36. The Ypairs oit' blocks are arranged at the opposite sides 'of the workV supporting table and against the side frames, vand are then secured by the'clainping plate 3'? pressing against the Hanges 41 of the blocks 39V and 40.. Mounted on the blocks 42,and V4,7 arev the supporting frames A and Yigor the paper board guiding and holding trame CQ'The frame'fl-L comprises the block l2 which has the longitudinally extending slots 43 whereby Ait kmay vbe adjustably secured on thev block 39 by screws 44. EX- tending upwardly from the block 42 at the rear and'oufter sides-thereofv isgthe, wall '45 whichhas the .opening 46;

rl`he :frame B is similar toY the frame A. and comprisesy the block 47 which is adjustably mounted onthe'block 40V bymeans ,of screws 48 engagingfin longitudinally eX- tending slots (not shown) rsiniilanto *thosez in the block- 42 of frame A. The block 47 e. o hasalso the vertical Wall 49'provided with 'the hole 50.

The guiding and-holding trame CV con,

' prises a wail 51'i'rom the upper end of which the shelf 52. extends'- forwardly at" right 1 angles.A Extending laterally from the wall 51 arethe pins 52 and 53 whichhave bearing in the holes 46;'and-50. inthe ears 45 and l' 49 respectively--Tlie` ear 45 being 'higher .tlianthefear 49,*the walls 51 and52 .will be inclined to or at an angle vwith reference toV the machine bed, but with the lower edge Pof the wall 52 inalplane-Vparallel with that l theflink 5.6` which link has the longitudinally -extendingiislot :tor receiving the Ybolt 58V 'of the cutting edge of. the knife 15.

Extending upwardly a'tthe left and right Aends respectively of the wall 51 are the arms 54 and 55. c rlhe arm-'54 has hinge'dltheieto 7 which alsolpasses thru the link 59'hin`ged'at its lower end'onlthe basee 42by meansro'f the screwuO. vThe linls 56and59 form an adjustabley brace fon setting the i angle of in.-

fclination ofthe inner face .ofthe wall51 VVwith reference to the vcutting j; plane. lin other wordstheangle ofi bevel can 'be varied 'by ineans'ofgthe adjustablebrace. During lengthening or shortening` of `the Vbrace the Yframes@ ltrunnio-ns' on its'pins 52 and 49.

i work' to be bereled.v The eddie ol the led'eV Secured against theunde'rside of the wall 5l is thestop plate 61 whichv projects a short. distance throughout its Y length Abeyond the Yrontlowei corner of the wall 51'in,

order to edera-supporting ledgerfl" for the isparallel with and against the tijertical-cutting.v plane of `the knife blade and .when 'the work is held an'ainst the, J'aceoji the wallg51 -and- Athe' le'd'geithev descendinglinife will bevel the vsupp'ortekl-'edgeY of the lworl. To automatically; hold the work in position Y aga-nst'the-wall-and ledge a pressure plate Y -62 is provided, thisl plater having pins 63 and; 64 extending; forwardly at Vits ends and thru the arms 54 'and 55, compression springs 65 en circlino'A the pinsbetween the `arms and the abutmentlnut (lfe'fore insertion of worlrtlie plate Y62 is held along its lower partagjainst Athewnll 51 ,by the springs 65.

When worlrfsuch as'a'V sheet of paperboard istobabet'eled; edongioneV edge,y the board is slidon suchedge' along the shelf 52 until it fence-unters the :pressure plate 62, and then with little pressure tho'boardisslid down-V `wardlfy :between the lfpressure plate andthe wall 51 and against the ledge 6-'1 in which position it isaheld whle thelrnie descends ifiefiiaA and inalres `the bevel cut.V In order tor takeV up any'sp-ring inthe boa-rd and torroiler a solid backing therefor during the cutting operation, the .lower Vpart orA the 'abutment lace ofl thevk wall 51'deflects gradually out- Als the vkniice'lstructure reciprocateslV its .cutting edgel is always horizontal, and the y iframe@ is therefore inclinedv transversely 80,

ofthe machine, thatis, its one sidev ish'gher than theother, in orderthat the'lrni'e-will `take a glidin'gor shaving-urgenti no tnierely l a pressure out. rlhe transverse moveiitient of the knife during' reciprocation thereof vwill ass's-t in thisshavingcut and a smooth i, and cleancut results, and there will-belv no ragged or fringed edges. Ne'ither'will vthe libres oit the paper ,board beV pulled" apart as would be'the caseundei1 directjnressure Y Y f v L l cutting.`

Yl thus produce a Very desirable'l and efliicient lieveling attachment -or paper 'Y cutting` machines which c anfbefV quickly z'i-nd"Y accuara-tel'y applied. .By meansA of the adjustableiV brace, and the adjustable*,supporting/'bases vrthe attachment; can be quickly -desiredangle oitbevehV Theoperator'need fthen only insert work into vplaceY tosuc'ces; sively bevel the edgesthereojt as desired; do'not of course desire to be tion shown andV described asfmodicati'ons can no doubt be made which wouldstill 'come withinthe scope of; my invention.V Having described my invention', lf clamas Vfollows limited 'to'l the exact construction,arrangement and operarv liooLA Y'hln an attaehinent ,ifoiflpaper V cutting Y machines, thegcombination of means tor'sup# vporting, the paperuto .belbeveled, a inembei 'which `is adapted to be removably secuiedrto` the l cutting machine, and a in einherv secured for adjustment with respect to the first nien tioned memberl and supporting'the paper supporting VYmember. A

2; lnan attachment s Y for iDePerC-iittis maa' chines, the combinationol' means V*for supporting the paper to be betie-led, afmembery Ywhich is adapted to l-be removably secured to the cutting machine, andamemb'er se- 'curedor` adjustment with 5, respect to. the

rst mentionedmember, said means for sup n portingthe paperbein'g mounted upon and arrangedv atan angle to the' adjustable memln a paper-cutting, machine, :the combinationot a supporting tablea lrnifemieans for lreciprocating saidlnife in aiplarne at Vright angles V,with said table, andanattach- Y,

ment ik :ori supportingficard boardto be cut `on the bevel knife, jsaid attachment 'lef/.ligay and means for tilting said wall to an angle with said cutting plane whereby upon descent of said knife the lower edge oi' said y board kwill be cut on the bevel.

et. ln a paper cutting machine, the combination of' the supportinfr table, a knife above said table, meansl for reciprocating` said knife 'in a plane at right angles withsaid table, and abeve'ling attachment, said attachment comprising a supporting wall in front of the cutting plane inclined from` said plane` a plate secured to the lower end of said wall and projectinga distance therefrom to form a seating ledge for card board to be cut, the front edge of said ledge being parallel Yith and against the cutting plane,

and means forY clamping a card board sheetV against said wall and on said ledge whereby upon descent of said Vknife the presented edge of said sheet will be cut away on the bevel, and means for varying` the angle of inclination of saidwall.

5. A bevel cutting attachment for paper cutting machines comprisingtwo supporting frames, a supporting board trunnioned at its ends on said frames to be tilted, means for locking said board in tilted position, a ledge at the lower front corner of said board Vforming'a seat for the work to be beveled,

and clamping mechanism for clamping the work against said board above said ledge.

6. ln a paper cutting machine, the combination with. Ya paper cutting machine'having a supporting table, a knife, and means for reciprocating said knife in a plane at right angles with said table, said table having a cutting stick channel below the knife, of a bevelingattachment comprising blocks supported on said table at the sides thereof and having flanges extending therefrom into said cutting stick channel, supporting frames on said blocks adjustable longitudinally thereon. an abutment Vwall extending between said frames and trunnioned thereon, said wall being higher at one side than at the opposite side whereby it is inclined in a direction transversely of said table, an Vadjustable brace connected between one of said frames anc said wall for adjusting the tilting of said wall and securing it in tilted position with reference to the cutting plane, means for clamping against said wall a. board tobe beveled. said wall beine positioned to present the lower edge of the clamped board thru the cuttingr plane whereby said edge will be cut on the bevel when the knife descends.

7. A bevel cutting attachment for paper cutting machines comprising two supporting frames, a supporting board trunnioned Vthe adjustable member.

at its ends on said frame to be tilted, meansV for lockingsaid board initilted position, a ledge at the lower front corner of said board 'forming a for the work to be beveled,

and claniping'mechanism for clamping the wort; aga'nst vsaid board above said ledge, said boarc having its front face deflecting gradually outwardly towards said ledge so that the work will be compressed'during the lieveling operation, such compression together with the ledge support keeping the beveled edge solid and intact.

f '8. In an attachment for paper cutting` machines, the combination of means for sup-v porting the paper to be beveled, a member which is adapted to be'iemovably secured to the cutting machine, and a member secured'for adjustment with respect to the first mentioned member, said paper support being` pivoted for adjustment with relation to 9. In an attachment for paper cuttingmachines, the combination of means for supporting the paper to be beveled, a member which is adapted to be removably secured to the cuttingmachine, a member secured for adjustment with respect to the irst mentioned member, said paper support being pivoted for adjustment with relation to the adjustable member, and means for locking said paper support in adjusted position.

10. ln an attachment for paper cutting machines. the combination of means for supporting the paper to be beveled, a member which is adapted to be removably secured to the cutting machine, a member secured for adjustment with respect to the first mentionedvmember, said paper support being pivoted for adjustment withY relation to the adjustable member. and means for locking said paper support in adjusted position, said means being arranged between the paper support and the adjustable member.

1l. In an attachment for paper cutting machines. the combination of means for supporting the paper to be beveled. a member which is adapted to be removably secured to a cutting machine. and a. member secured for adjustment with respect to the iirst mentioned member, said firstv members being adapted to be secured and removed from the cutting machine as a unit. Y

l2. In apparatus of the class described, a guillotine cutting machine, an attachment therefor comprising support adapted nemovably to lit upon the machine table, an intermediate means adjustable on the support, an inclined paper supporting member adjust-ably 'pivoted on the intermediate means, and means for clamping the paper to the paper supporting member.

13. In apparatus of the class described, a `guillotine cutting machine, an attachment therefor comprising a support adapted report, anv inclined paper Supportingv member 'adjustably pivoted Von Y the intermediate v means, and means for clamping the paper to theV paper supporting member, Vsaid intermay he adjustedgrelatively te thelcutting planefofVthellmfe.VV V

"In witnesswhereof, I hereunto subscribe vmjy name this 5th day of September, A. D. `1919.l Y mediate means bein'gadjusta'ble'Wherebythe Y- Y Y i" y' VILr-rnLM- MAYER., 

